Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 261 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.True or false: small stones from dal is done by handpicking. (a) False (b) True
2. 2.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
5. 5.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
6. 6.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) filtering (d) sieving
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
9. 9.🫗 Which of these is done by sieving? (a) mud from water (b) bran from wheat flour (c) sugar from sugar water (d) tea leaves from tea
10. 10.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) muddy water (d) a balloon
12. 12.True or false: tea leaves from tea is done by filtering. (a) True (b) False
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
14. 14.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a funnel (d) turmeric powder
17. 17.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) yeast (c) a mirror (d) turmeric powder
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a balloon
22. 22.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) sand and pebbles (d) a battery cell
25. 25.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) mud from water (d) tea leaves from tea
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
29. 29.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
30. 30.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
31. 31.True or false: husk from rice grain is done by winnowing. (a) True (b) False
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) turmeric powder (d) muddy water
33. 33.True or false: gravel from fine sand is done by sieving. (a) False (b) True
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
35. 35.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
36. 36.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
37. 37.🫗 Which of these is done by winnowing? (a) mud from water (b) salt from sea water (c) husk from rice grain (d) gravel from fine sand
38. 38.True or false: mud from water is done by filtering. (a) False (b) True
39. 39.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
40. 40.True or false: bad grains from rice is done by sieving. (a) False (b) True

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